它們會在每個路徑操作被各自獨立檢查。

## 試用看看 { #check-it }

如果你打開 API 文件，你可以先驗證並指定你要授權的 scopes。

<img src="/img/tutorial/security/image11.png">

如果你沒有選任何 scope，你仍會「通過驗證」，但當你嘗試存取 `/users/me/` 或 `/users/me/items/` 時，會收到沒有足夠權限的錯誤。你仍能存取 `/status/`。

若你只選了 `me` 而未選 `items`，你能存取 `/users/me/`，但無法存取 `/users/me/items/`。

這就是第三方應用在取得使用者提供的 token 後，嘗試存取上述路徑操作時，會依使用者授與該應用的權限多寡而有不同結果。

## 關於第三方整合 { #about-third-party-integrations }

from fastapi.param_functions import Form
from fastapi.security.base import SecurityBase
from fastapi.security.utils import get_authorization_scheme_param
from starlette.requests import Request
from starlette.status import HTTP_401_UNAUTHORIZED


class OAuth2PasswordRequestForm:
    """
    This is a dependency class to collect the `username` and `password` as form data
    for an OAuth2 password flow.

	if sys == nil {
		return
	}
	sys.Lock()
	defer sys.Unlock()

	// Remove existingtarget and arn association
	if stgts, ok := sys.targetsMap[bucket]; ok {
		for _, t := range stgts {
			delete(sys.arnRemotesMap, t.Arn)
		}
		delete(sys.targetsMap, bucket)
	}

	if tgts != nil {
		for _, tgt := range tgts.Targets {

                    activeCrawlerNum++;
                    ThreadUtil.sleep(crawlingExecutionInterval);
                    continue;
                }

                // check status
                for (int i = 0; i < startedCrawlerNum; i++) {
                    if (crawlerList.get(i).getCrawlerContext().getStatus() == CrawlerStatus.DONE

    type: Class<T>,
    computeIfAbsent: () -> T,
  ): T = tags.computeIfAbsent(type.kotlin, computeIfAbsent)

  @SuppressWarnings("CloneDoesntCallSuperClone") // We are a final type & this saves clearing state.
  override fun clone(): Call = RealCall(client, originalRequest, forWebSocket)

  override fun request(): Request = originalRequest

  /**

Und wenn Sie den Scope `me`, aber nicht den Scope `items` auswählen, können Sie auf `/users/me/` zugreifen, aber nicht auf `/users/me/items/`.

		if err != nil {
			t.Fatalf("%s : %s", instanceType, err)
		}
		meta.VersioningConfigXML = []byte(`<VersioningConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Status>Suspended</Status></VersioningConfiguration>`)
		if err := meta.Save(context.Background(), obj); err != nil {
			t.Fatalf("%s : %s", instanceType, err)
		}
		globalBucketMetadataSys.Set(bucket, meta)

	_, _, err = r.ReadRune() // reset state
	if err != nil {
		t.Error("unexpected error on ReadRune (2):", err)
	}
	_, err = r.Read(buf)
	if err != nil {
		t.Error("unexpected error on Read (2):", err)
	}
	if r.UnreadRune() == nil {
		t.Error("expected error after Read (2)")
	}
	// Test error after ReadByte.
	_, _, err = r.ReadRune() // reset state
	if err != nil {

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